Changing TimeZone format in Time Stamp

So I created a little timestamp Macro and assigned a shortcut to help me when documenting on the fly

Sub TimeStamp()
'Inserts current date
Selection.InsertDateTime DateTimeFormat:="hh:mm AM/PM ", InsertAsField:=False
lbl_Exit:
Exit Sub
End Sub

My PC is set to Eastern Time zone, but I would like the time that's generated by the macro to be Mountain Time.
How would I change the code to do so?

(I know it would a lot easier if I just change the time zone setting on the PC itself, but I'm in a environment that doesn't allow that, and I have no pc admin previllages.)

Thanks, that's really what I'm looking for.

I need the code to just +2 hrs or -2 hrs from the current time When I use the Macro.